Contributing to High-Density Packaging for 5G Mobile and Wireless Communications
TOKYO, April 23, 2019 – Alps Alpine Co., Ltd. (Tokyo: 6770; President & CEO: Toshihiro Kuriyama), a manufacturer of high-quality electronic products, has developed the FLHL2 Series Lens Array with Mirror for optical transceivers that are used, for example, in optical networks for data centers.
The FLHL2 Series, with a 0.75mm lens pitch and dimensions of 1.3 × 1.3 × 3.5mm (H×W×L), integrates condenser lens and mirror components of an optical transceiver receiver. Lenses and mirror previously had to be positioned separately to convey light to the photodiode. Integrating these two components helps to reduce the number of parts and shorten the optical distance, thereby contributing to downsizing of optical transceivers. Cutting the number of components also reduces the work required for transceiver assembly, leading to lower costs.
<Comparison with Existing Design>
The FLHL2 Series was designed for existing optical transceivers, but Alps Alpine also looks to develop lens arrays with 0.5mm and 0.25mm lens pitches in anticipation of future market requirements for downsizing and multi-channel transceivers as IoT spreads and 5G services are introduced.
Features
- Lens array combining condenser lenses and mirror helps downsize optical transceivers and reduce the manufacturing workload
- Glass lens with little light loss, based on a strong track record over many years
- Lead-free glass (RoHS*-compliant)
*European Union law on the restriction of the use of certain hazardous substances in
electrical and electronic equipment
Principal Applications
Optical transceivers inside data center racks
Specifications
| Model | FLHL2 Series |
| Dimensions (H×W×L) | 1.3 × 1.3 × 3.5mm |
| Type | Photodiode coupling lens |
| Target device | Chip type PD |
| Wavelength (λ) | 1310nm/1550nm |
| Focal length (f) | 1.51mm (1550nm) |
| L1 [WD] | 0.62mm (1550nm) |
| Numerical aperture (NA) | 0.2 |
| Beam diameter | 0.6mm (1550nm) at effective NA |
Planned Release
Mass Production: August 2019
Sample price: \3000 (incl. tax)
Development: Engineering Headquarters – Nagaoka Plant (Nagaoka, Niigata Pref.)
Production: Production Headquarters – Nagaoka Plant (Nagaoka, Niigata Pref.)
Monthly output: 10,000 units (April 2020)
Additional Resources
Find further information about the product in the online press release: https://www.alps.com/e/news_release/
